v3.26.1
MINERAL PROPERTIES, PLANT AND EQUIPMENT, NET
 3 Months Ended
Mar. 31, 2026
Property, Plant and Equipment [Abstract]  
MINERAL PROPERTIES, PLANT AND EQUIPMENT, NET MINERAL PROPERTIES, PLANT AND EQUIPMENT, NET
The components of Mineral properties, plant and equipment, net are as follows (in thousands):
March 31, 2026December 31, 2025
Plant and equipment (1)
$1,120,453 $1,090,741 
Construction in process
 223,644 192,611 
Mineral properties subject to depletion

866,345 833,213 
Mineral properties not yet subject to depletion
 737,412 749,509 
Exploration and evaluation assets

86,639 94,466 
Total mineral properties, plant, and equipment 3,034,493 2,960,540 
Accumulated depreciation, plant and equipment

(673,658)(658,438)
Accumulated depletion, mineral properties(475,489)(466,380)
Mineral properties, plant, and equipment, net
$
1,885,346 
$
1,835,722 
(1)As of March 31, 2026 and December 31, 2025, plant and equipment includes finance lease right-of-use assets with a carrying amount of $0.2 million and $0.5 million, respectively.
No impairment was recognized during the three months ended March 31, 2026 and 2025.